Boston   battery AAA, alkaline, 1,5 Volt, 4 pcs

Boston   battery LR22, alkaline, 9 Volt, 1 pc

Boston   universal switching power supply, 1000 ma, 3-12 Volt, 6 separate tips

Boston   power supply, 9 Volt 500mA, tip positive, also for Hayman digital drums

Boston   power supply, 12 Volt 1000mA, tip positive

Boston   power supply, 12 Volt 3000mA, tip positive